她吃惊地望着他，现在，她不再害怕，但是感觉到一股极大的精神负荷。
She stared directly at him, now, no longer afraid, but aware of a terrible burden shifting deep within her soul.
结果表明，加载精神负荷后受试者的HRV的三个非线性参数都有不同程度的降低。
The effects of mental load on HRV of pilots were analyzed with nonlinear dynamic analyzing methods .
汽车驾驶员精神负荷状态下的心率变异性分析对于揭示驾驶员职业应激特点，预防驾驶员职业疾病，保护驾驶员身体健康及提高行驶安全性有重要意义。
Analysis of HRV on driver's mental stress helps reveal a driver's occupation characteristics, prevent him from professional diseases, protect his health, and improve the safety during driving.
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